/* bzflag
 * Copyright (c) 1993-2020 Tim Riker
 *
 * This package is free software;  you can redistribute it and/or
 * modify it under the terms of the license found in the file
 * named COPYING that should have accompanied this file.
 *
 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include "plugin_groups.h"
#include "plugin_utils.h"

bool permInGroup ( const std::string &perm, bz_APIStringList* groupPerms )
{
    for (unsigned int i = 0; i < groupPerms->size(); i++)
    {
        if (strcasecmp(perm.c_str(),groupPerms->get(i).c_str()) == 0)
            return true;
    }
    return false;
}

std::vector<std::string> findGroupsWithPerms( const std::vector<std::string> &perms, bool skipLocal )
{
    std::vector<std::string> groupsWithPerms;

    bz_APIStringList* groupList = bz_getGroupList();

    if (groupList)
    {
        for ( unsigned int i = 0; i < groupList->size(); i++)
        {
            std::string groupName = groupList->get(i).c_str();

            if (skipLocal && compare_nocase(groupName,"LOCAL.ADMIN") == 0)
                continue;

            bz_APIStringList *groupPerms = bz_getGroupPerms(groupName.c_str());
            if (groupPerms)
            {
                // see if any of the perms are NOT in this group.
                bool hasOneWithNoPerm = false;
                for (size_t p =0; p < perms.size(); p++)
                {
                    if (!permInGroup(perms[p],groupPerms))
                        hasOneWithNoPerm = true;
                }
                bz_deleteStringList(groupPerms);

                if (!hasOneWithNoPerm)
                    groupsWithPerms.push_back(groupName);
            }
        }
        bz_deleteStringList(groupList);
    }

    return groupsWithPerms;
}

std::vector<std::string> findGroupsWithPerm( const char* perm, bool skipLocal )
{
    std::string name;
    if (perm)
        name = perm;
    return findGroupsWithPerm(name,skipLocal);
}

std::vector<std::string> findGroupsWithPerm( const std::string &perm, bool skipLocal )
{
    std::vector<std::string> groupsWithPerms;

    bz_APIStringList* groupList = bz_getGroupList();

    if (groupList)
    {
        for ( unsigned int i = 0; i < groupList->size(); i++)
        {
            std::string groupName = groupList->get(i).c_str();

            if (skipLocal && compare_nocase(groupName,"LOCAL.ADMIN") == 0)
                continue;

            bz_APIStringList *groupPerms = bz_getGroupPerms(groupName.c_str());
            if (groupPerms)
            {
                if (permInGroup(perm,groupPerms))
                    groupsWithPerms.push_back(groupName);

                bz_deleteStringList(groupPerms);
            }
        }
        bz_deleteStringList(groupList);
    }
    return groupsWithPerms;
}

std::vector<std::string> findGroupsWithAdmin( bool skipLocal )
{
    std::vector<std::string> perms;
    perms.push_back(bz_perm_kick);
    perms.push_back(bz_perm_ban);

    return findGroupsWithPerms(perms,skipLocal);
}

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